Loading metrics Open Access Peer-reviewed Research Article Tanja Skiendziel, Andreas G. Rösch, Oliver C. Schultheiss Tanja Skiendziel, Andreas G. Rösch, Oliver C. Schultheiss Published: October 17, 2019 https://doi.org/10.1371/journal.pone.0223905 Figures Abstract This study validates automated emotion and action unit (AU) coding applying FaceReader 7 to a dataset of standardized facial expressions of six basic emotions (Standardized and Motivated Facial Expressions of Emotion).